Fix LayoutUnit snapping of widths in line breaker

third_party/WebKit/Source/core/layout/line/BreakingContextInlineHeaders.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc.
  *               All right reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 364 matching lines @@
   if (m_collapseWhiteSpace && !ComputedStyle::collapseWhiteSpace(m_lastWS))
     m_currentCharacterIsSpace = false;
 }
 
 inline void BreakingContext::increment() {
   m_current.moveToStartOf(m_nextObject);
 
   // When the line box tree is created, this position in the line will be
   // snapped to LayoutUnit's, and those measurements will be used by the paint
   // code. Do the equivalent snapping here, to get consistent line measurements.
-  m_width.snapUncommittedWidth();
+  m_width.snapAtNodeBoundary();
 
   m_atStart = false;
 }
 
 inline void BreakingContext::handleBR(EClear& clear) {
   if (m_width.fitsOnLine()) {
     LineLayoutItem br = m_current.getLineLayoutItem();
     m_lineBreak.moveToStartOf(br);
     m_lineBreak.increment();
 
@@ skipping 1149 matching lines @@
 
   if (style.getTextIndentType() == TextIndentHanging)
     indentText = indentText == IndentText ? DoNotIndentText : IndentText;
 
   return indentText;
 }
 
 }  // namespace blink
 
 #endif  // BreakingContextInlineHeaders_h